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Degirmenci A, Sanyal R, Sanyal A. Metal-Free Click-Chemistry: A Powerful Tool for Fabricating Hydrogels for Biomedical Applications. Bioconjug Chem 2024; 35:433-452. [PMID: 38516745 PMCID: PMC11036366 DOI: 10.1021/acs.bioconjchem.4c00003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/23/2024]
Abstract
Increasing interest in the utilization of hydrogels in various areas of biomedical sciences ranging from biosensing and drug delivery to tissue engineering has necessitated the synthesis of these materials using efficient and benign chemical transformations. In this regard, the advent of "click" chemistry revolutionized the design of hydrogels and a range of efficient reactions was utilized to obtain hydrogels with increased control over their physicochemical properties. The ability to apply the "click" chemistry paradigm to both synthetic and natural polymers as hydrogel precursors further expanded the utility of this chemistry in network formation. In particular, the ability to integrate clickable handles at predetermined locations in polymeric components enables the formation of well-defined networks. Although, in the early years of "click" chemistry, the copper-catalyzed azide-alkyne cycloaddition was widely employed, recent years have focused on the use of metal-free "click" transformations, since residual metal impurities may interfere with or compromise the biological function of such materials. Furthermore, many of the non-metal-catalyzed "click" transformations enable the fabrication of injectable hydrogels, as well as the fabrication of microstructured gels using spatial and temporal control. This review article summarizes the recent advances in the fabrication of hydrogels using various metal-free "click" reactions and highlights the applications of thus obtained materials. One could envision that the use of these versatile metal-free "click" reactions would continue to revolutionize the design of functional hydrogels geared to address unmet needs in biomedical sciences.
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Affiliation(s)
- Aysun Degirmenci
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
| | - Rana Sanyal
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
- Center
for Life Sciences and Technologies, Bogazici
University, Bebek, Istanbul 34342, Türkiye
| | - Amitav Sanyal
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
- Center
for Life Sciences and Technologies, Bogazici
University, Bebek, Istanbul 34342, Türkiye
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Sun L, Cheng L, Fu H, Wang R, Gu Y, Qiu Y, Sun K, Xu H, Lei P. A strategy for nitrogen conversion in aquaculture water based on poly-γ-glutamic acid synthesis. Int J Biol Macromol 2023; 229:1036-1043. [PMID: 36603727 DOI: 10.1016/j.ijbiomac.2022.12.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023]
Abstract
Ammonia and nitrite are nitrogenous pollutants in aquaculture effluents, which pose a major threat to the health of aquatic animals. In this study, we developed a nitrogen conversion strategy based on synthesis of poly-γ-glutamic acid (γ-PGA) by Bacillus subtilis NX-2. The nitrogen removal efficiency of NX-2 was closely related to synthesizing γ-PGA, and was positively correlated with the inoculum level. The degradation rates of ammonia nitrogen and nitrite at 104 CFU/mL were 84.42 % and 62.56 %, respectively. Through adaptive laboratory evolution (ALE) experiment, we obtained a strain named ALE 5 M with ammonia degradation rate of 98.03 % and nitrite of 93.62 % at the inoculum level of 104 CFU/mL. Transcriptome analysis showed that the strain was more likely to produce γ-PGA after ALE. By enzyme activity and qPCR analysis, we confirmed that ALE 5 M degraded ammonia nitrogen through γ-PGA synthesis, which provided a new way for nitrogen removal in aquaculture water.
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Affiliation(s)
- Liang Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Lifangyu Cheng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Heng Fu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Rui Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Yian Gu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Yibin Qiu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Ke Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Hong Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Peng Lei
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China.
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Degirmenci A, Yeter Bas G, Sanyal R, Sanyal A. “Clickable” Polymer Brush Interfaces: Tailoring Monovalent to Multivalent Ligand Display for Protein Immobilization and Sensing. Bioconjug Chem 2022; 33:1672-1684. [PMID: 36128725 PMCID: PMC9501913 DOI: 10.1021/acs.bioconjchem.2c00298] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Facile and effective functionalization of the interface
of polymer-coated
surfaces allows one to dictate the interaction of the underlying material
with the chemical and biological analytes in its environment. Herein,
we outline a modular approach that would enable installing a variety
of “clickable” handles onto the surface of polymer brushes,
enabling facile conjugation of various ligands to obtain functional
interfaces. To this end, hydrophilic anti-biofouling poly(ethylene
glycol)-based polymer brushes are fabricated on glass-like silicon
oxide surfaces using reversible addition–fragmentation chain
transfer (RAFT) polymerization. The dithioester group at the chain-end
of the polymer brushes enabled the installation of azide, maleimide,
and terminal alkene functional groups, using a post-polymerization
radical exchange reaction with appropriately functionalized azo-containing
molecules. Thus, modified polymer brushes underwent facile conjugation
of alkyne or thiol-containing dyes and ligands using alkyne–azide
cycloaddition, Michael addition, and radical thiol–ene conjugation,
respectively. Moreover, we demonstrate that the radical exchange approach
also enables the installation of multivalent motifs using dendritic
azo-containing molecules. Terminal alkene groups containing dendrons
amenable to functionalization with thiol-containing molecules using
the radical thiol–ene reaction were installed at the interface
and subsequently functionalized with mannose ligands to enable sensing
of the Concanavalin A lectin.
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Affiliation(s)
- Aysun Degirmenci
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey
| | - Gizem Yeter Bas
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey
| | - Rana Sanyal
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey
- Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey
- Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
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Mao L, Ren X, Feng B, Zhang Y, Zhang J, Huang W. Sydnone-maleimide based cascading double 1,3-dipolar cycloaddition for synthesis of “A(A′) + B3” type hyperbranched polyimide. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Baker B, O'Donnell A, Priya, Hyder M, German I, Hayes W. A supramolecular glass made from a low molecular weight amino acid derivative. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Guven MN, Balaban B, Demirci G, Yagci Acar H, Okay O, Avci D. Bisphosphonate-functionalized poly(amido amine) crosslinked 2-hydroxyethyl methacrylate hydrogel as tissue engineering scaffold. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Wu Y, Lin X, Li J, Zhang C, Liu Y, Song L, Hao X, Lin F, Wang S, Dong T. Polylactic Acid/Cerium Fluoride Films: Effects of Cerium Fluoride on Mechanical Properties, Crystallinity, Thermal Behavior, and Transparency. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4882. [PMID: 34500972 PMCID: PMC8432698 DOI: 10.3390/ma14174882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/19/2021] [Accepted: 08/24/2021] [Indexed: 01/01/2023]
Abstract
PLA is widely used in the field of disposable products for its good transparency, high strength, high modulus, and good processing performance. However, the crystallization rate and crystallinity of PLA are weak. In actual production, the PLA products that are typically obtained are amorphous with poor heat resistance, which greatly limits the application range of PLA products. Finding an effective nucleating agent to improve the transparency of PLA has been a hot topic in research. This study found that Cerium fluoride (CeF3) can effectively improve the crystallinity of PLA/CeF3 (P/F) films. When the content of CeF3 in PLA was 1 wt %, the retention ratio of visible light transmittance was 82.36%, the crystallinity was 29.8%, and the tensile strength was 59.92 MPa. Compared to pure PLA, the crystallinity of P/F1 increased by 56% and tensile strength increased by 8.76%. This study provided an alternative scheme that maintained the PLA film's transparency and improved the crystallinity of PLA, which significantly expanded the application of PLA.
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Affiliation(s)
- Yincai Wu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; (Y.W.); (X.L.); (C.Z.); (F.L.)
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen 361021, China; (J.L.); (S.W.)
| | - Xintu Lin
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; (Y.W.); (X.L.); (C.Z.); (F.L.)
| | - Jinlei Li
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen 361021, China; (J.L.); (S.W.)
| | - Chuanxiang Zhang
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; (Y.W.); (X.L.); (C.Z.); (F.L.)
| | - Yuejun Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; (Y.W.); (X.L.); (C.Z.); (F.L.)
| | - Lijun Song
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen 361021, China; (J.L.); (S.W.)
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Xihai Hao
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; (Y.W.); (X.L.); (C.Z.); (F.L.)
| | - Fenglong Lin
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; (Y.W.); (X.L.); (C.Z.); (F.L.)
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen 361021, China; (J.L.); (S.W.)
| | - Shenglong Wang
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen 361021, China; (J.L.); (S.W.)
| | - Tungalag Dong
- School of College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010000, China;
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Nitti A, Martinelli A, Batteux F, Protti S, Fagnoni M, Pasini D. Blue light driven free-radical polymerization using arylazo sulfones as initiators. Polym Chem 2021. [DOI: 10.1039/d1py00928a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The polymerization of a broad range of electron-poor olefins has been achieved under free-radical conditions by using arylazo sulfones as visible light photoinitiators.
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Affiliation(s)
- Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Angelo Martinelli
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Fabrice Batteux
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Stefano Protti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Maurizio Fagnoni
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
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